Roostertail

[Lineman74]

Lowered the motor 1/2" roostertail is lower but still kinda high got boat up to 53 trimmed all the way tried lowering some lost speed 5600rpm. I did notice that seems like my prop is slipping maybe? Feels like it catches then slips. My motor had a hard time trying to take off like it wasn't getting had mad realized after I got home my primerball wouldn't get hard because it was level so I pointed it down and now it gets hard when you squeeze it could this make it feel like it's slipping?

[jarhead175]

Position shouldn't matter if it got firm after moving you probably have a pin hole in or near the bulb. And yes that will cause the slip feeling it's your motor losing fuel.

[pmgoffjr]

Slipping is usually a description of cavitating. Like spinning your wheels in your truck.
Bogging is like taking off in third, it's not happy doing that either.

[GoFastBoater]

Correct me if I'm wrong, because I'm no expert.

But a 22 raker on 175 HP motor at Full Throttle, full trim should slip and throw a giant rooster tail because it's not enough prop.

I bet if you can find a 24 raker and move the Jack Plate to 3.5" to start with, and adjust from there, you'll find more speed and lose some rooster tail.

[pmgoffjr]

Prop pitch would not affect rooster tail height.

[Todd from Tenn]

I mentioned in a previous post that I have a 187cx with a 175hp yamaha. I am having the same issue running 50mph. I also have a prop with no info on it. I'm going to take it in and have the motor looked at. It runs smooth and has a great hole shot. I'll let you know what I find out.

[pmgoffjr]

If you are running a known setup, and you have a known good prop set at a reasonable motor height and barring anything crazy then you should expect reasonable results.

A 187 with 175 should expect 65 mph. If you aren't then it's just finding out why.

[ChampioNman]

You may want to check this adjustment out on your motor. The adjustment applies to all 60* V-6 motors.
http://www.bbcboards.net/showthread.php?t=11790